Seems like cloudera and standard apache-hadoop are really not crosscompatible. Things like MultipleInputs and stuff that we are finding don'twork the same. Any good (recent) war stories on the migration between thetwo ?

Its interesting to me that cloudera and amazon are that difficult to swapin/out in cloud.

Probably makes sense to move this to the cdh-user list if you have anyCloudera-specific questions. But I just wanted to clarify: CDH doesn'tmake any API changes that aren't already upstream. So, in some places,CDH may be ahead of whatever Apache release you are comparing against,but it is always made up of patches from the Apache trunk. In thespecific case of MultipleInputs, we did backport the new APIimplementation from Apache Hadoop 0.21+.

If you find something in CDH that you would like backported toupstream Apache Hadoop 1.0.x, please feel free to file a JIRA andassign it to me - I'm happy to look into it for you.

ThanksTodd

On Wed, Apr 4, 2012 at 10:15 AM, Jay Vyas <[EMAIL PROTECTED]> wrote:> Seems like cloudera and standard apache-hadoop are really not cross> compatible. Things like MultipleInputs and stuff that we are finding don't> work the same. Any good (recent) war stories on the migration between the> two ?>> Its interesting to me that cloudera and amazon are that difficult to swap> in/out in cloud.

-- Todd LipconSoftware Engineer, Cloudera

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